i work for metropolitan in detroit. i would like to touch on something that fryer said regarding not being able to cut your way. it's really good when you're in a pilot program such as a charter school being able to cherry pick the best teachers. but when we are talking about paving the success and making it large-scale, rolling it over to public school, how do you get the best teachers or how do you motivate the teachers already in the system when you can't cherry pick the best? i'd like for either one of you to address that. >> we need to suspect here the training program teaching of art kindergarten, first and second grade teachers have to teach disadvantaged children to read is a very intensive five day training program and this year we're going to implement the program and to five more days of training. the program we are paying for is optional for teachers. it's very fascinating. we've taken a first deep dive look looking at who's going to the training of the summer and who's trying up -- signed up over the semest